16566440202264 has 32 divisors (see below), whose sum is σ = 42297294136320. Its totient is φ = 5404654250016.

The previous prime is 16566440202259. The next prime is 16566440202337. The reversal of 16566440202264 is 46220204466561.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7343279104 + ... + 7343281359.

It is an arithmetic number, because the mean of its divisors is an integer number (1321790441760).

Almost surely, 2^{16566440202264} is an apocalyptic number.

It is an amenable number.

16566440202264 is an abundant number, since it is smaller than the sum of its proper divisors (25730853934056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16566440202264 is a wasteful number, since it uses less digits than its factorization.

16566440202264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14686560519 (or 14686560515 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 48.

The spelling of 16566440202264 in words is "sixteen trillion, five hundred sixty-six billion, four hundred forty million, two hundred two thousand, two hundred sixty-four".